Global warming - Printable Version +- Generational Theory Forum: The Fourth Turning Forum: A message board discussing generations and the Strauss Howe generational theory (http://generational-theory.com/forum) +-- Forum: Fourth Turning Forums (http://generational-theory.com/forum/forum-1.html) +--- Forum: Current Events (http://generational-theory.com/forum/forum-34.html) +---- Forum: Environmental issues (http://generational-theory.com/forum/forum-13.html) +---- Thread: Global warming (/thread-62.html) |
RE: Global warming - radind - 03-14-2017 Solar is emerging. Quote:U.S. Solar Market Set Record in 2016 RE: Global warming - Eric the Green - 03-14-2017 31 scientific bodies tell US Congress: Climate change is real 'The severity of climate change impacts is increasing and is expected to increase substantially in the coming decades' Ian Johnston Environment Correspondent Tuesday 28 June 2016 15:16 BST http://www.independent.co.uk/environment/climate-change-is-real-experts-tell-us-congress-global-warming-a7107531.html The idea that climate change is a vast global conspiracy -- involving everyone from Nasa and the British Met Office to Chinese government scientists and – has persisted in the United States to an alarming degree. So much so that more than 180 members of Congress are believed to be climate deniers, including Senator Jim Inhofe, who once tossed a snowball to the presiding officer in February, saying: “You know what this is? It’s a snowball, from outside here. So it’s very, very cold out. Very unseasonable.” Washington DC gets an average of about 12cm (5 inches) of snow in February. Now 31 major scientific organisations in the US – including the American Association for the Advancement of Science, the American Meteorological Society and the Society for Industrial and Applied Mathematics – have signed a joint letter to Congress urging them to accept that climate change is real and action needs to be taken. “Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research concludes that the greenhouse gases emitted by human activities are the primary driver,” they write. Climate change could destroy the Statue of Liberty, Venice and many other parts of the world's heritage, UN report warns “This conclusion is based on multiple independent lines of evidence and the vast body of peer-reviewed science. “There is strong evidence that ongoing climate change is having broad negative impacts on society, including the global economy, natural resources, and human health. “For the United States, climate change impacts include greater threats of extreme weather events, sea level rise, and increased risk of regional water scarcity, heat waves, wildfires, and the disturbance of biological systems. The severity of climate change impacts is increasing and is expected to increase substantially in the coming decades.” (There is no chance for a green future if we cover up climate change) The letter adds that to reduce the risk of the “most severe” impacts of climate change, “greenhouse gas emissions must be substantially reduced”. “In addition, adaptation is necessary to address unavoidable consequences for human health and safety, food security, water availability, and national security, among others,” the signatories say. “We, in the scientific community, are prepared to work with you on the scientific issues important to your deliberations as you seek to address the challenges of our changing climate.” They can expect a frosty reception from some, particularly Mr Inhofe, who chairs the Senate Committee on Environment and Public Works and is also the author of The Greatest Hoax: How the Global Warming Conspiracy Threatens Your Future. Last year, during the talks about the Paris climate agreement, Mr Inhofe told a meeting of sceptics: “I look forward to hearing what kind of cover-up deal emerges from this international climate conference. “And you guys here in this room, as you always have, just keep it up. Our progress would not have happened without you. You’re doing the Lord’s work, and we’re going to win this thing together.” RE: Global warming - Eric the Green - 03-14-2017 (03-14-2017, 12:46 PM)X_4AD_84 Wrote:(03-14-2017, 02:20 AM)Eric the Green Wrote: Much more ice melting is inevitable now. The scientist quoted above says that if enough of the Antarctic melts soon, sea rise could be 15 feet. Exact predictions seem unlikely, but this doesn't matter. What's clear is that if Drump and the Gophers are not counter-acted by state and local governments and market forces, the sea will engulf us more and more. Our role is to remain open and aware of what the scientists are saying and where the bulk of evidence leads, not to pronounce some finding "unbelievable" based on one's own assumptions, or conclusions about who has an agenda and who doesn't. PBS is a reputable news source; if you know of other findings by reputable climate scientists, you can post and cite/source them. It's always good to have the most evidence possible about what's going on with this and other climate issues. RE: Global warming - Eric the Green - 03-14-2017 (03-14-2017, 07:40 PM)X_4AD_84 Wrote:(03-14-2017, 07:09 PM)Eric the Green Wrote:(03-14-2017, 12:46 PM)X_4AD_84 Wrote:(03-14-2017, 02:20 AM)Eric the Green Wrote: Much more ice melting is inevitable now. The scientist quoted above says that if enough of the Antarctic melts soon, sea rise could be 15 feet. Exact predictions seem unlikely, but this doesn't matter. What's clear is that if Drump and the Gophers are not counter-acted by state and local governments and market forces, the sea will engulf us more and more. Appears out of date. If you have other evidence about what's happening to Antarctica ice in 2016-2017, and where it's likely to lead regarding sea level rise, please post it. RE: Global warming - The Wonkette - 03-15-2017 (03-14-2017, 07:05 PM)Eric the Green Wrote: 31 scientific bodies tell US Congress: Climate change is realIt would also destroy Mara Lago [/quote] RE: Global warming - Eric the Green - 03-15-2017 That would be justice. RE: Global warming - pbrower2a - 03-15-2017 "Arctic" and "Antarctic" do not have anything like the same latitudinal definition. The Antarctic is defined either by the Antarctic Convergence (where temperate-zone ocean waters meat polar waters and both sink) that imply very different oceanic worlds, or 60S. The southernmost extension of any ice cap in the Northern Hemisphere is at 60s just north of the southernmost point in Greenland. But even that lies to the south of some of the northernmost forests in the Northern Hemisphere. Such cities as Oslo, Helsinki, St. Petersburg, and Anchorage are at roughly the same latitude. The Kerguelen Islands which have glaciers reaching the sea are about as far south as Vancouver, Winnipeg, Paris, Prague, and Kiev -- clearly middle-latitude locations. It's telling that parts of Ireland are borderline -- subtropical. Anything south of 60S is unambiguously polar. The unbroken seas surrounding Antarctica shield anything in the Antarctic from any semblance of middle-latitude warmth. Greenland's ice cap is a relic of the Ice Age, and it is not in equilibrium with the weather conditions. If the ice melts to any extent, then that ice is likely gone indefinitely. This said, it would not take much for the Falkland Islands to become fully temperate. Should the Antarctic Convergence change location, then something really is changing. RE: Global warming - Eric the Green - 03-24-2017 Arctic sea ice maximum at record low for third straight year http://nsidc.org/arcticseaicenews/ RE: Global warming - Eric the Green - 03-25-2017 (03-24-2017, 01:38 PM)X_4AD_84 Wrote:(03-24-2017, 12:58 PM)Eric the Green Wrote: Arctic sea ice maximum at record low for third straight year The scientific consensus is that more heat is absorbed into the ocean when there is no ice to reflect it back into space. Global warming will accelerate. Sea level rise will depend on how much ice melts in Greenland and Antarctica. Things don't look good. Greenland melting has been accelerating for years now, and Antarctica stands to lose massive glaciers that could cause a rise in sea levels of 15 feet soon. The USA voters in swing states decided to take the risk of a severe meltdown and warm up. Only cities, blue states and entreprenuers like Elon Musk can stem the tide now, and only if CA can keep its mileage standards. If cities can switch their energy sources to solar and wind, that could still help a lot. Meanwhile the Paris agreement still holds for the more sane nations, while the USA installs an insane, drumpy dictator into power whose only interest is destruction. There are going to be a lot of unjust killings of species, especially the corals like the Great Barrier Reef which is home to so much ocean life. And these reefs will no longer protect many lands from the increasing floods and storms that will kill millions of people. Droughts and fires will increase. The USA voters have imposed a great danger and huge burden on the world, just to uphold "free enterprise" principles and the fortunes of a few greedy CEOs. The USA voters in swing states like kinser decided that the convenience of a few wealthy and greedy oil and coal barons matter much more than the safety of millions of humans and other species all over the world. Now THAT is the greatest and cruelest "treason" of our time. RE: Global warming - Odin - 03-25-2017 (03-24-2017, 01:38 PM)X_4AD_84 Wrote: There may be an ironic effect of that ... the following winter might be harsh in the Northern Hemisphere midlatitudes. . Warming at the poles reduces the temperature contrast between the poles and the tropics, which weakens the subpolar jet streams and makes them more likely to meander, making blasts of bone-chilling cold into the mid-lattitudes and extreme mid-winter thaws of the sort that happened this February more common. RE: Global warming - Eric the Green - 03-25-2017 Record-breaking climate change pushes world into ‘uncharted territory’ Earth is a planet in upheaval, say scientists, as the World Meteorological Organisation publishes analysis of recent heat highs and ice lows A boat lies in the dry Cedro reservoir in Quixadá, Brazil. Climate change increases the risk of extreme weather events like drought. Photograph: Evaristo Sa/AFP/Getty Images Damian Carrington @dpcarrington Monday 20 March 2017 20.39 EDT Last modified on Tuesday 21 March 2017 07.40 EDT The record-breaking heat that made 2016 the hottest year ever recorded has continued into 2017, pushing the world into “truly uncharted territory”, according to the World Meteorological Organisation. The WMO’s assessment of the climate in 2016, published on Tuesday, reports unprecedented heat across the globe, exceptionally low ice at both poles and surging sea-level rise. Global warming is largely being driven by emissions from human activities, but a strong El Niño – a natural climate cycle – added to the heat in 2016. The El Niño is now waning, but the extremes continue to be seen, with temperature records tumbling in the US in February and polar heatwaves pushing ice cover to new lows. 2016 hottest year ever recorded – and scientists say human activity to blame Read more “Even without a strong El Niño in 2017, we are seeing other remarkable changes across the planet that are challenging the limits of our understanding of the climate system. We are now in truly uncharted territory,” said David Carlson, director of the WMO’s world climate research programme. “Earth is a planet in upheaval due to human-caused changes in the atmosphere,” said Jeffrey Kargel, a glaciologist at the University of Arizona in the US. “In general, drastically changing conditions do not help civilisation, which thrives on stability.” The WMO report was “startling”, said Prof David Reay, an emissions expert at the University of Edinburgh: “The need for concerted action on climate change has never been so stark nor the stakes so high.” The new WMO assessment also prompted some scientists to criticise Donald Trump. “While the data show an ever increasing impact of human activities on the climate system, the Trump administration and senior Republicans in Congress continue to bury their heads in the sand,” said Prof Sir Robert Watson, a distinguished climate scientist at the UK’s University of East Anglia and a former head of the UN’s climate science panel. “Our children and grandchildren will look back on the climate deniers and ask how they could have sacrificed the planet for the sake of cheap fossil fuel energy, when the cost of inaction exceeds the cost of a transition to a low-carbon economy,” Watson said. Trump is aiming to cut climate change research. But the WMO’s secretary-general Petteri Taalas said: “Continued investment in climate research and observations is vital if our scientific knowledge is to keep pace with the rapid rate of climate change.” Arctic ice melt 'already affecting weather patterns where you live right now' Read more 2016 saw the hottest global average among thermometer measurements stretching back to 1880. But scientific research indicates the world was last this warm about 115,000 years ago and that the planet has not experienced such high levels of carbon dioxide in the atmosphere for 4m years. 2017 has seen temperature records continue to tumble, in the US where February was exceptionally warm, and in Australia, where prolonged and extreme heat struck many states. The consequences have been particularly stark at the poles. “Arctic ice conditions have been tracking at record low conditions since October, persisting for six consecutive months, something not seen before in the [four-decade] satellite data record,” said Prof Julienne Stroeve, at University College London in the UK. “Over in the southern hemisphere, the sea ice also broke new record lows in the seasonal maximum and minimum extents, leading to the least amount of global sea ice ever recorded.” Eel grass grows in sediment at Lowell’s Cove, Maine, US. Sea-level rise has ruined this once rocky location. Photograph: Robert F Bukaty/AP Emily Shuckburgh, at the British Antarctic Survey, said: “The Arctic may be remote, but changes that occur there directly affect us. The melting of the Greenland ice sheet is already contributing significantly to sea level rise, and new research is highlighting that the melting of Arctic sea ice can alter weather conditions across Europe, Asia and North America.” Global sea level rise surged between November 2014 and February 2016, with the El Niño event helping the oceans rise by 15mm. That jump would have take five years under the steady rise seen in recent decades, as ice caps melt and oceans get warmer and expand in volume. Final data for 2016 sea level rise have yet to be published. Climate change harms people most directly by increasing the risk of extreme weather events and the WMO report states that these raised risks can increasingly be calculated. For example, the Arctic heatwaves are made tens of times more likely and the soaring temperatures seen in Australia in February were made twice as likely. “With levels of carbon dioxide in the atmosphere consistently breaking new records, the influence of human activities on the climate system has become more and more evident,” said Taalas. RE: Global warming - Eric the Green - 03-28-2017 (03-28-2017, 12:17 AM)X_4AD_84 Wrote: Looks folks I don't deny AGW. There are some people who seem to exaggerate the dangers, like Mr. McPherson. Otherwise, there is just data reported by scientists. The bottom line is not an exaggeration. We needed to get off of fossil fuels many years ago. This has been delayed by Republicans responding to denialist propaganda and fossil fuel company pressure. How much damage will, or could occur, is not known for sure; again that's a question for scientists, the data, and the models. But if you dispute the current scientific data, you must do so with current scientific data. RE: Global warming - Eric the Green - 03-30-2017 While the blind refuse to open their eyes, and knock the messenger, Al Gore soldiers on. He's baaaack! Deniers (you know who you are), if you don't like the planet you're on, if you don't give a damn about it, why don't you get the hell outta here? Go live on Mars! RE: Global warming - Ragnarök_62 - 04-03-2017 (04-03-2017, 06:33 PM)X_4AD_84 Wrote:(03-30-2017, 02:53 AM)Eric the Green Wrote: While the blind refuse to open their eyes, and knock the messenger, Al Gore soldiers on. He's baaaack! Have you ever considered overpopulation as an additional driver of global warming? Overpopulation leads to more resource consumption, more shit in landfills, more fossil fuel burning, and an overall drain on all other resources the earth offers, say even overfishing. RE: Global warming - Ragnarök_62 - 04-03-2017 X_4AD_84 Wrote:Plus, the vast amount of development last century also led to massive albedo modifications as well as the establishment of systems that radiate and convect waste heat. Motors, electrical conductors, electronic components, heck, even microwave transmissions interacting with H20 in the atmosphere. All of it adds heat to the boundary layer. You bet ya. Development paves over a big CO2 sink, plant life. Waste heat is of course a manifestation of entropy. We humans are expert entropy creators ... unless some of us do stuff to become net carbon negative like use home made compost, plant trees, do everything to refrain from using cars, etc. Motors: Yeah, those can be a bitch, release heat of entropy, create NOx[from sparking], O3, etc. Although compared to fossil fuel combustion, I think that's a negligible contribution. Internal combustion/diesel vehicles create ground level O3 [a plant life poison , along with animal life] , NOx, of course CO2, waste heat, and soot. Now: 1. Does microwave radiation interact with H2O? I'm guessing you're right although I haven't seen this, besides microwave ovens , so yeah, I suppose so. 2. Electric conductors: Is this power lines? I know electricity flow creates magnetic fields. I'm not sure here to be honest. 3. Electric components. I'd say sure wrt resistors. Those convert electric energy to waste heat. I'm not sure wrt transistors/capacitors/inductors/etc. I'd guess you're right since those aren't 100% efficient. I just don't have a definitive source there. Sorry. RE: Global warming - Eric the Green - 04-03-2017 (04-03-2017, 06:33 PM)X_4AD_84 Wrote:(03-30-2017, 02:53 AM)Eric the Green Wrote: While the blind refuse to open their eyes, and knock the messenger, Al Gore soldiers on. He's baaaack! No, Hansen was nowhere near a shyster; he's just informing us of what is happening. We needed to be far more extreme than we have been. Republicans have spent 40 years making unnecessary delays. Yes, overpopulation is a problem. Al Gore mentioned it in his 2006 film. However, most rapid population rise today is taking place in Africa. Elsewhere it has slowed down, although maybe not enough. The Trumps of the world are entirely responsible for their OWN lust to destroy the EPA and environmental protections. Mainly, they hate it because it infringes on their neo-liberal ideology of "less government" etc. Again, Mr. X, if you have current scientific data from climate scientists for your claims about motors and electricity causing global heat, let's see it. Otherwise; needless speculation is all that it is. The idea and the facts are simple. For 40 years now, global warming has been accelerating. At some time in the near future, it will make life unsustainable without huge catastrophe. The cause: human use of fossil fuels. The remedy: change our energy industry. Changes in industry that are market driven happen all the time. The neo-liberal fanatics and greedy bosses who own and run this country today resist the idea of government helping to drive a change in industry. But this has happened many times before too. The right-wing fanatics are entirely responsible for their resistance to the needed changes. They are the creepy Dixieland slaveholders of today, and they may end up splitting the country. Bozos! RE: Global warming - Eric the Green - 04-04-2017 Can climate science wafflers and deniers read graphs? Apparently not, but they are there for those few willing to learn. http://www.nationalgeographic.com/magazine/2017/04/seven-things-to-know-about-climate-change/ RE: Global warming - Eric the Green - 04-04-2017 One of the scientists who demonstrated conclusively that global warming was an unnatural event with the famous “hockey stick” graph is now warning that giant jetstreams which circle the planet are being altered by climate change. Professor Michael Mann said extreme weather events – such as the “unprecedented” drought in California last year, the flooding in Pakistan in 2010 and the heatwave in Europe in 2003 – were happening more often than they should do, even taking the warming climate into account. This, he said, meant there had to be an additional factor. But the Arctic has been warming much faster than tropical climates – the island of Svalbard, for example was 6.5 degrees celsius warmer last year compared to the average between 1961 and 1990. The land has also been warming faster than the sea. Both of those factors were changing the flow of these major air currents to create “extreme meanders” which were helping to cause “extreme weather events”, Professor Mann said. Last year, another leading climate scientist warned that the rapid rate of warming in the Arctic could have a “catastrophic” effect on the weather in the northern hemisphere. In a paper in the journal Scientific Reports, Professor Mann and other researchers wrote that evidence of the effect of climate change on the jetstreams had “only recently emerged from the background noise of natural variability”. They said that projections of the effect on the jetstreams in “state-of-the-art” climate models were “mirrored” in “multiple” actual temperature measurements. Professor Michael Mann, of the Pennsylvania State University, said: “The unprecedented 2016 California drought, the 2011 US heatwave and 2010 Pakistan flood as well as the 2003 European hot spell all belong to a most worrying series of extremes. “The increased incidence of these events exceeds what we would expect from the direct effects of global warming alone, so there must be an additional climate change effect. “In data from computer simulations as well as observations, we identify changes that favour unusually persistent, extreme meanders of the jetstream that support such extreme weather events. “Human activity has been suspected of contributing to this pattern before, but now we uncover a clear fingerprint of human activity.” The jetstream normally flows reasonably consistently around the planet, but can develop loops extending north and south. The researchers, who studied temperature records going back to 1870 as well as satellite data, said these loops could grow “very large” or even “grind to a halt” rather than moving from west to east. 10 photographs to show to anyone who doesn't believe in climate change The effect has been most pronounced during the past 40 years, they found. “The more frequent persistent and meandering jetstream states seems to be a relatively recent phenomenon, which makes it even more relevant,” said Dim Coumou of the Department of Water and Climate Risk at Vrije University in Amsterdam. “We certainly need to further investigate this – there is some good evidence, but also many open questions. “In any case, such non-linear responses of the earth system to human-made warming should be avoided. “We can limit the risks associated with increases in weather extremes if we limit greenhouse gas emissions.” http://www.independent.co.uk/environment/climate-change-global-air-currents-drought-heatwaves-floods-global-warming-michael-mann-arctic-a7651581.html RE: Global warming - Eric the Green - 04-04-2017 (04-04-2017, 10:41 AM)X_4AD_84 Wrote:(04-03-2017, 11:08 PM)Eric the Green Wrote:(04-03-2017, 06:33 PM)X_4AD_84 Wrote:(03-30-2017, 02:53 AM)Eric the Green Wrote: While the blind refuse to open their eyes, and knock the messenger, Al Gore soldiers on. He's baaaack! Continue? I don't think you started. In the abstract I saw not even an assertion that this heat generated by electronic devices contributes to global warming. RE: Global warming - Eric the Green - 04-04-2017 (04-04-2017, 01:58 PM)X_4AD_84 Wrote:(04-04-2017, 12:08 PM)Eric the Green Wrote:(04-04-2017, 10:41 AM)X_4AD_84 Wrote:(04-03-2017, 11:08 PM)Eric the Green Wrote:(04-03-2017, 06:33 PM)X_4AD_84 Wrote: For every Hansen there is a Trump. Had there not been a shyster like Hansen, there would not be the current blood lust to destroy the EPA and to reorient NASA completely away from climate science. Neither extreme is helpful. Sorry; once again that's just your opinion. |